CN204419672U - For internal-combustion engine can the water pump of switch and internal-combustion engine - Google Patents
For internal-combustion engine can the water pump of switch and internal-combustion engine Download PDFInfo
- Publication number
- CN204419672U CN204419672U CN201420390379.7U CN201420390379U CN204419672U CN 204419672 U CN204419672 U CN 204419672U CN 201420390379 U CN201420390379 U CN 201420390379U CN 204419672 U CN204419672 U CN 204419672U
- Authority
- CN
- China
- Prior art keywords
- water pump
- switch
- housing
- internal
- bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
- F01P5/12—Pump-driving arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/021—Units comprising pumps and their driving means containing a coupling
- F04D13/022—Units comprising pumps and their driving means containing a coupling a coupling allowing slip, e.g. torque converter
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/0462—Bearing cartridges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/049—Roller bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
- F01P7/162—Controlling of coolant flow the coolant being liquid by thermostatic control by cutting in and out of pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/10—Metals, alloys or intermetallic compounds
- F05D2300/12—Light metals
- F05D2300/121—Aluminium
Abstract
The utility model relate to a kind of can the water pump (600) of switch, comprise housing (610), drives impeller (660) axle (650), be press-fitted in described housing (610) and support the bearing (620) of described axle, insert the coil of coil cage (630), wherein, described coil cage (630) and described housing (610) are designed to integral piece.
Description
Technical field
What the utility model related to a kind of cooling system for internal-combustion engine can the water pump of switch.
Background technique
As everyone knows, internal-combustion engine extracts energy to produce machine power from hot-fluid.Motor is inefficient, because the mechanical energy that the heat energy entering motor produces than motor is more, their difference is exactly the used heat that must be removed.Internal-combustion engine removes used heat by cool air, hot waste gas and the clear and definite engine cooling apparatus sucked.Motor also needs cooling, because high temperature can damage engine material and oiling agent.Most of internal-combustion engine is all fluid-cooled, the liquid coolant used then by heat exchanger (radiator) by Air flow.The motor of most liquid cooling uses the mixture of water and chemical substance, such as antifreezing solution and iron rust inhibitor.
The most important parts for liquid-cooling system are coolant pumps, normally water pump.In the motor in modern times, cooling circuit can be arranged can the water pump of switch, and it can be cut off at the starting period of internal-combustion engine.On some new automobiles coolant pump by fan belt or Timing Belt drive.Freezing mixture from radiator, moves by motor, and transports radiator back by described pump.Described pump at one end has the axle with belt pulley, and has pump rotor or impeller on an opposite end.Described pump shaft is by bearings, and described bearing is generally roller bearing or needle bearing.Belt pulley is by the crank-driven of internal-combustion engine, and impeller can by the friction pair of pump shaft by switch.
See Fig. 1, representing can the prior art embodiment of water pump of switch, and pump main bearing 520 is press-fitted in pump casing 510, to avoid any displacement under running conditions due to the component of axis.This bearing is formed from steel, and described pump casing is made of aluminum.In addition, additionally and with being different from standard water pump (its do not need can the action of switch), also by for disconnect or the steel coil cage (coil cage) 530 of separate pump is press-fitted in the external diameter of aluminum enclosure.All parts are processed, to have suitable press fit magnitude of interference and pressure load.This causes having such press fit tolerance chain, and this tolerance chain is made up of the tolerance about following size: coil cage (steel) inner diameter relative to housing (aluminum) external diameter and housing inner diameter relative to bearing (steel) external diameter.
Consider the order of magnitude of machining tolerance at micron of bearing outside diameter, and the tolerance values of the internal diameter of housing and external diameter and coil cage internal diameter is on the 0.01mm order of magnitude, because aluminium has the thermal expansion coefficient doubling steel, and consider for automobile, temperature range must be considered at least at-40 DEG C to+140 DEG C, this just must increase the magnitude of interference of bearing press fit, to avoid the trend occurring loss pressure load under disadvantageous heat condition.This can make bearing discharge existing overload, causes ball and roller distortion.
Therefore need a kind of newly can the pumps design of switch, this design can reduce existing press fit tolerance chain, not make pump bearing transship.
Model utility content
Technical problem to be solved in the utility model be to provide a kind of can the water pump of switch, this water pump has the press fit tolerance chain be equal to the press fit tolerance chain of standard water pump.
The technical problem that another will solve of the present utility model be by improve described two can switch water pump two character references planes between parallelism, improve this belt pulley axial runout.
Described technical problem by a kind of can switch water pump and a kind ofly there is this can the internal-combustion engine of water pump of switch solve.
The utility model first provide for this reason a kind of can the water pump of switch, this water pump comprise housing, drives impeller axle, be press-fitted in housing and support the bearing of described axle, insert the coil of coil cage, it is integral piece that wherein said coil cage is designed to housing.Described integral piece refers to that coil cage and housing are the parts of an one, such as because described two parts in identical molding process by co-manufactured.
The advantage of this embodiment is coil cage to be integrated in pump case the tolerance chain decreasing pump, thus can reduce the press fit magnitude of interference of bearing, thus improves bearing life.In addition, further advantage is, because do not need to carry out machining on coil cage internal diameter and housing outer diameter, does not need between coil cage and housing, carry out press-fit operation and less cost of material, thus pump cost is lower generally.
According to an aspect of this embodiment, described housing is made of aluminum.
In fact, coil cage is integrated in pump case, and therefore it is also made of aluminum, and this makes magnetic loss be lowered.
According to another embodiment, described press fit tolerance chain only and is accurately the tolerance of housing inner diameter and the tolerance of bearing outside diameter.
The advantage of this embodiment is that new solution makes the press fit tolerance chain of water pump of the present utility model the same with the tolerance chain of standard water pump.
According to another embodiment of the present utility model, the scope that the press fit between housing inner diameter and bearing outside diameter is interfered is between 10 to 80 μm.
The advantage of this embodiment is, due to the raising of tolerance degrees of freedom, bearing life is increased to identical with the bearing life of the bearing for standard water pump.
According to another embodiment, the scope of the parallelism between first reference level and the second reference level of housing of housing is between 0.05 to 0.1mm.
The advantage of this embodiment is, the better parallelism between the first reference level and the second reference level (this second reference level connects with belt pulley) makes the axial runout of belt pulley be improved.
Of the present utility modelly still another embodiment provides a kind of internal-combustion engine, this internal-combustion engine comprise according to above-described embodiment can the water pump of switch.
Accompanying drawing explanation
The utility model is set forth in conjunction with the following drawings below by specific embodiment, wherein:
Fig. 1 illustrate according to prior art design can the water pump of switch.
Fig. 2 illustrate according to embodiment of the present utility model can the water pump of switch.
Embodiment
Fig. 2 illustrates can the water pump 600 of switch.This water pump comprises the axle 650 of shell 610, drives impeller or rotor 660, and described axle 650 is driven by belt pulley 670.Described axle is supported by bearing 620, and described bearing is generally roller bearing or needle bearing.Belt pulley is by the crank-driven of internal-combustion engine, and impeller 660 can by the friction pair of pump shaft 650 by switch.
The bearing 620 of pump is press fit in pump case 610, can avoid under running conditions because axial thrust load causes any displacement.This bearing is formed from steel, and the shell of described pump is made of aluminum.In addition, this pump also comprises coil 640 and for disconnecting or the coil cage 630 of separate pump.This can the major character of water pump of switch be that coil cage 630 and shell 610 are designed to integral piece, and be different from known solution, namely coil cage is individual components and is extruded to match with the outside of housing.This new housing being integrated with coil cage, preferably made of aluminum.Known can the water pump middle shell of switch also made of aluminum, and independently coil cage is formed from steel.According to embodiment of the present utility model, coil cage is integrated in the housing of described pump, therefore also made of aluminum, thus magnetic loss is lowered, because aluminum and its alloy is nonmagnetic.
Adopt this new solution, its major advantage is to reduce press fit tolerance chain: in fact, known can in the pumps design of switch, described press fit tolerance chain is made up of relative to the tolerance of bearing outside diameter relative to the tolerance of housing outer diameter and housing inner diameter described coil cage internal diameter, and new solution is illustrated press fit tolerance chain and only comprised tolerance between the internal diameter 611 of housing 610 and the external diameter of bearing 621.In other words, this is the press fit tolerance chain of standard water pump (i.e. unswitched water pump).Even if as a result, in extreme temperature conditions, increase compression load due to the increase of tolerance degrees of freedom, or in other words, the required interference value between housing and bearing can have a larger scope, such as, between 10 ~ 80 μm.This makes bearing life be improved, and is at least equivalent to the bearing for standard water pump.
In addition, the press fit tolerance chain reduced also can produce such advantage, namely make there is better parallelism between reference level A and reference level B, described reference level A represents the sealing surface of pump on the engine, and described reference level B represents the pump plane connected with belt pulley 670 through cod 680.Parallelism between described two planes should between 0.05 to 0.1mm.As a result, the axial runout of belt pulley can be improved.
In a word, this have integrated coil cage in the housing to can the new design of water pump of switch, provide some and improve: because lower press fit magnitude of interference improves bearing working life; Due to parallelism better between the basic datum plane of two pumps, improve beating of belt pulley; Owing to not needing to carry out machining operation on coil cage internal diameter and housing outer diameter, do not need between coil cage and housing, carry out press fit cooperation and due to less cost of material, pump is with low cost on the whole.
Although describe at least one exemplary form of implementation in aforementioned specification part with in describing in detail, it should be understood that to there is a large amount of modification.Described form of implementation is only interpreted as citing and should limit using scope of the present utility model, applicability or configuration in any way.Or rather; what described declaratives provided for a person skilled in the art is only a kind of guidance the utility model being converted at least one mode of execution; wherein; the each element introduced in favourable form of implementation is set up can carries out various change in function and cloth, as long as without prejudice to the protection domain required by claims and equivalent technical solutions thereof.
List of numerals
500 can the water pump (known design) of switch
510 housings
520 bearings
530 coil cages
600 can the water pump (newly design) of switch
610 housings
611 housing inner diameter
620 bearings
621 bearing outside diameters
630 become the coil cage of integral piece with housing
640 coils
650 axles
660 impellers
670 belt pulleys
680 cods
A, B reference level
Claims (6)
1. one kind can the water pump (600) of switch, comprise housing (610), drives impeller (660) axle (650), be press-fitted in described housing (610) and support the bearing (620) of described axle, insert the coil (640) of coil cage (630), it is characterized in that, described coil cage (630) and described housing (610) are designed to integral piece.
2. according to claim 1 can the water pump (600) of switch, it is characterized in that, described housing (610) is made of aluminum.
3. according to claim 1 can the water pump (600) of switch, it is characterized in that, press fit tolerance chain only and is accurately the tolerance of housing (610) internal diameter (611) and the tolerance of bearing (620) external diameter.
4. according to claim 3 can the water pump of switch, it is characterized in that, the scope of the press fit magnitude of interference between described housing (610) internal diameter (611) and described bearing (620) external diameter (612) is between 10 to 80 μm.
5. according to any one of claim 1-4 can the water pump of switch, it is characterized in that, the scope of the parallelism between first reference level (A) and second reference level (B) of described housing (610) of described housing (610) is between 0.05 to 0.1mm.
6. an internal-combustion engine (110), comprise according to one of the claims Suo Shu can the water pump (600) of switch.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1312652.9A GB2516244A (en) | 2013-07-15 | 2013-07-15 | Switchable water pump for an internal combustion engine |
| GB1312652.9 | 2013-07-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204419672U true CN204419672U (en) | 2015-06-24 |
Family
ID=49081302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420390379.7U Expired - Fee Related CN204419672U (en) | 2013-07-15 | 2014-07-15 | For internal-combustion engine can the water pump of switch and internal-combustion engine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN204419672U (en) |
| GB (1) | GB2516244A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112045372A (en) * | 2020-09-08 | 2020-12-08 | 重庆神箭汽车传动件有限责任公司 | Pump body machining method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6561141B2 (en) * | 2001-01-19 | 2003-05-13 | Borg Warner, Inc. | Water-cooled magnetorheological fluid controlled combination fan drive and water pump |
| GB2391048B (en) * | 2002-07-18 | 2005-07-27 | Visteon Global Tech Inc | Motor vehicle engine coolant pump |
| CN102933813B (en) * | 2010-03-05 | 2015-04-22 | 丰田自动车株式会社 | Control device for internal combustion engine |
| CN202560359U (en) * | 2012-04-10 | 2012-11-28 | 龙口市汽车风扇离合器厂 | Dustproof electromagnetic fan clutch |
-
2013
- 2013-07-15 GB GB1312652.9A patent/GB2516244A/en not_active Withdrawn
-
2014
- 2014-07-15 CN CN201420390379.7U patent/CN204419672U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112045372A (en) * | 2020-09-08 | 2020-12-08 | 重庆神箭汽车传动件有限责任公司 | Pump body machining method |
| CN112045372B (en) * | 2020-09-08 | 2022-04-29 | 重庆神箭汽车传动件有限责任公司 | Pump body machining method |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201312652D0 (en) | 2013-08-28 |
| GB2516244A (en) | 2015-01-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 Termination date: 20180715 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |